Screen.



No. 730,230. PATENTED JUNE 9, 1903.

- E. T. BURROWBS.

SCREEN.

APPLIOATION FILED MAR. 20, 1903.

- E mlmu/ Patented June 9, 1903.

EDlVARD T. BURROlVES, OF PORTLAND, MAINE.

SCREEN.

SPECIFICATION forming part of Letters Patent No. 230,230,

dated June 9, 1903.

Application filed March 20,1903. SerialNo.148,764. \No model.)

To all whom, it 11mg concern.-

Be it known that I, EDW'ARD T. Bunnowns, a citizen of the UnitedStatcs,residing at Portland, in the county of Cumberland and State ofMaine, have invented certain new and useful Improvements in Screens, ofwhich the following is a specification, reference being had therein tothe accompanying drawings.

This invention relates to improvements in screens, more particularlythat type in which ametallic screen is secured to a wooden frame forutilization in windows, doors, and the like; and the same has for itsobject the perfecting of the interlocking iustrumentalities between theedges of the metallic screen and the supporting-frame.

lVith this object in view the invention contemplates the provision of aframe provided with a groove in one of its surfaces and a locking-stripfitting said groove and clamping the edge of the metallic screentherein, said edge of the screen extending around the inner surface ofthe locking-strip to increase its holding efficiency; and the inventionstill further embraces the provision of an angular portion in the frameadjacent to the abovementioned groove, into which a portion of themetallic screen fits and is engaged by a piece of molding having acorrespondinglyangular portion, thereby affording in connection with thelocking-strip and its groove what I will term a double lock for the edgeof the screen.

Novel details in the construction and arrangement of the several partsof the screen will be apparent from the detailed description hereinafterwhen read in connection with the accompanying drawings, forming parthereof, and wherein a preferable embodiment of the invention isillustrated for the sake of facilitating a clear understanding of theinention. It is, however, to be understood that the invention is not tobe limited in the specific embodiment described except in so far as anyfeatures of the same may be included in the appended claims, because itis obvious that slight changes and alterations may be made without inthe least departing from the spirit of the invention.

In the drawings, Figure l is a perspective view of a section of thesupporting'frame of a screen, showing the manner of securing the edge ofthe screen material thereto. Fig. 2 is a similar view with the moldingdetached, and Fig. 3 is a detail sectional view.

Referring more specifically to the drawings, wherein like referencecharacters refer to corresponding parts in the several views, Adesignates a portion of a frame, preferably of wood, which maybeunderstood as being the surrounding frame of a windowscreen orscreen-door. This frame is provided with an inwardly-extendi11g flangea, the meeting of the upper surface of the flange and the main body ofthe frame forming an abrupt angle a. The upper surface of the flange isprovided at a point intermediate its edges with alongitudinally-disposed groove a preferably curved transversely,and theedges of the flange merging into the walls of the groove are slightlyrounded, as at a B is a piece of molding finished on its exposed surfaceto present a pleasing appearance and having a flat inner surface adaptedto overlie the flange a of the frame and the groove therein, the innercorners of said mold ing being of angular formation, as at I),corresponding to the angle a.

O is aseeuring-strip, preferably circular in cross-section and of acurvature approximately that of the transverse contour of the groove (LThis strip is of approximately the same diameter as the groove and isforced thereinto so as to be held by frictional e11- gagement forpurposes to be now pointed out.

The structural features of the frame having been described, theapplication of the edge of the screen material thereto will be readilyunderstood. The metal screen is drawn taut across the frame with anample portion of the edge of the same overlying the supportingframe. Thesecuring-strip G is then rolled into the groove a forcing before it themetal screen, and the strip being of wood or metal either the same orthe material of the flange surrounding the groove is compressed, wherebythere is sufficient friction created to firmly secure the screen to theframe. It will be seen that by this arrangement the edge of the screenextends completely around the securing-strip. The free portion of saidedge is thereupon bent into the angle a, whereupon the piece of moldingB is firmly secured in place, thereby locking said free edge at thecorner Z) thereof. By this arrangement a double lock is provided, fromwhich it is practically impossible to tear the edge of the screen. Thecorners a being rounded, as stated, permits the screen to conform to theshape of the groove and extend outwardly therefrom without bending thematerial upon too sharp an angle, thereby obviating any danger ofbreaking the wires of the screen.

IVhile I am aware that I am not the first to secure a screen to asupportingframe through the medium of a groove and a strip fittin g thesame, the edge of the screen being clamped between one side only of thestrip and the wall of the groove, I have, however, found that such priorconstructions possess many obj ections, and the construction herein hasbeen devised to overcome such objections and is a decided advance in theart.

Having thus described the invention, What is claimed as new, and desiredto be secured by Letters Patent, is

1. In combination with a frame provided with a flange having alongitudinal groove and an angular portion adjacent to said groove, ascreen arranged with its edge fitting and passing through said grooveand conforming to the angle of said angular portion, a locking-stripfitting said groove over the screen, and a molding overlying the flangeand its groove and having an angular portion conforming to the angularportion of the frame and locking the inner portion of the edge of thescreen therein.

2. I11 combination with a frame provided with a flange having alongitudinal groove and an angular portion adjacent to said groove, ascreen arranged with its edge fitting and passing through said grooveand conforming to the angle of said angular portion, and means forsecuring the edge of the screen in said groove and in said angleportion.

3. In combination with a frame provided with a flange having alongitudinal groove and ah angular portion adjacent to said 1 groove, ascreen arranged with its edge fit tingand passing through said grooveand conforming to the angle of said angular portion, the edges of theflange adjacent to the groove therein being rounded, a locking-stripfitting said groove over the screen, and a molding overlying the flangeand its groove and having an angular portion conforming to the angularportion of the frame, and locking the inner portion of the edge of thescreen therein.

4. In combination with a frame provided with a flange having alongitudinal groove and an angular portion adjacent to said groove, saidgroove being curved transversely, a screen arranged with its edgefitting and passing through said groove and conforming to the angle ofsaid angular portion,a locking-strip approximately circular in crosssection fitting said groove over the screen, and a molding overlying theflange and its groove and having an angular portion con forming to theangle portion of the frame and locking the inner portion of the edge ofthe screen therein.

5. In combination with a frame provided with a flange having alongitudinal groove and an angular portion adjacent to said groove, saidgroove being curved transversely and the edges of the flange adjacent tosaid groove being rounded, a screen arranged with its edge fitting andpassing through said groove and conforming to the angle of said angularportion, a locking-strip fitting said groove over the screen, and amolding overlying the flange and its groove and having an angularportion conforming to the angular portion of the frame and locking theinner portion of the edge of the screen therein.

In testimony whereof I affix my signature in presence of two witnesses.

EDIVARD T. BURROVES.

Vitnesses FRANK L. RIcKER, STEPHEN XV. CABLE.

